Bench\Base::init PHP Method

    protected function init()
    {
        // make sure we have a target file specified
        if (empty($_SERVER['argv'][1])) {
            $this->outln("Please specify a targets file; e.g., './target/all.ini'.");
            exit(1);
        } else {
            $targets_file = $_SERVER['argv'][1];
        }
        
        // does the targets file exist?
        $realpath = realpath($targets_file);
        if (! $realpath || ! file_exists($realpath) || ! is_readable($realpath)) {
            $this->outln("Targets file '$targets_file' does not exist or is not readable.");
            exit(1);
        }
        
        // retain real path to targets file
        $targets_file = $realpath;
        
        // root directory
        $base_dir = dirname(dirname(__DIR__));
        
        // the ini file with property values
        $data = parse_ini_file("{$base_dir}/config.ini");
        
        // what properties to load?
        $vars = array_keys(get_class_vars(get_class($this)));
        
        // set all available properties
        foreach ($vars as $var) {
            if (array_key_exists($var, $data)) {
                $this->$var = $data[$var];
            }
        }
        
        // massage the concurrency levels
        $this->concurrent = explode(',', $this->concurrent);
        
        // read in the targets file
        if (substr($targets_file, -4) == '.ini') {
            // a .ini file with "name = path"
            $this->targets = parse_ini_file($targets_file);
        } else {
            // a non-ini file with one target URI per line
            $keys = file($targets_file);
            $vals = array_fill(0, count($keys), null);
            $this->targets = array_combine($keys, $vals);
        }
        
        // make a directory for logs
        $time = date("Y-m-d\TH:i:s");
        $this->log_dir = "{$base_dir}/log/{$time}";
        @mkdir($this->log_dir, 0777, true);
        
        // reset the req/sec data
        $this->req_sec = array();
    }